Drill.



A. G. LUDLUM.

DRILL.

APPLICATION FILED AUG. 31, 1910.

Patented Feb. 21, 1911.

M ut WITNESSES. -& INVENTOR ATTORNEY C. 0 M a 1 c m n s A W a c s R E r E F m x R u N E H r UNITED STATES PATENT OFFICE.

ALBERT C. LUDLUM, OF NEW YORK, N. Y., ASSIGNOR TO NEW YORK ENGINEERING COMPANY, A CORPORATION OF NEW YORK.

DRILL.

To all whom it may concern:

Be it known that I, ALBERT C. LUnLUrr, a citizen of the United States, and a resldent of the borough of Manhattan, clty, county, and State of New York, have mvented certain new and useful Improvements in Drills, of which the following is a specification.

This invention relates to improvements in drills and more particularly to means whereby the drill casing may be rotated by horse power.

The invention consists in the provision of a horse traction sweep readily adapted for attachment to and detachment from the drill casing and as hereinafter set forth.

In the accompanying drawings formmg part of this specification and in which l ke reference numerals designate corresponding parts in the several views I have shown the invention in its preferred form.

Figure 1. is a plan view of the sweep. Fig. 2. is a side elevation thereof. Fig. 3. is a side elevation of the sweep attached to the drill casing Fig. 4. is a plan view, partly in section, showing the inner end of the sweep attached to the head of the drill casing.

Referring, now, more particularly to the features as shown in the drawings, the sweep is constructed of two side rails 1 and 2, preferably of angle iron as shown, and connected rigidly together by tie-pieces 3 and 4. The pieces 3 consist of strips riveted across the top of the rails. The pieces 4 consist of bolts passing through the sides of the rails and provided with sleeves to brace the rails apart when the nuts on the bolts are tightened. The rails are secured close together at their outer ends and diverge toward their inner ends so as to extend on either side of the drill casing, as shown in Fig. 4. The sweep is provided at its outer end with a clevis 5 and swingle-tree 6. Near the outer end is a wheel 7 suspended from two of the bolts 4 by a loop 8 and so as to be capable of rocking sidewise. 20 is a cross bolt extending across the loop 8 to hold the sweep above the wheel.

The platform 16 has a collar 10 rigidly secured thereto and this collar screws onto the upper end of the casing and is provided with lugs 11 and 12 projecting therefrom. Against these lugs fit the cheek pieces 13 and 14 riveted on the side rails 1 and 2.

Specification of Letters Patent. Patented F b 21 1911 Application filed August 31, 1910.

Serial No. 579,881.

A removable bolt 15 passes through the cheek pieces and lugs and thus the sweep is pivotally attached to the platform and pivotally connected with the casing. Mounted 011 the casing is the platform 16.

17 is the drill rod.

The inner ends of the rails are provided with downwardly and outwardly projecting rods 18 and 19 which provide detectors. When the drill is in operation the sweep is drawn in a circle around the drill, the outer end being supported on the wheel 7 and thus the casing is rotated. At the same time the drill rod 17 is worked up and down by the operators and the case and drill graduallysink into the earth. From time to time as the platform sinks to near the ground level, the casing and drill rod are lengthened by adding additional sectlons to them, the platform being removed to permit this to be done. The detectors 18 and 19 serve to warn the operator when the rotation of the casing should cease by their contact with the ground, thus putting a drag on the sweep. The provision of the detectors, it will therefore be seen, enables the work to proceed without stopping until the detectors strike the ground and give their warning that the operation should halt for the addition of new sections to the casing and drill rod. Frequent stopping of the work and inspection of the clearance between the ground and platform are thus avoided and time saved.

What I claim and desire to secure by Letters Patent is:

1. In a drill the combination of a drill casing; a platform mounted thereon; and a horse traction sweep pivotally connected with the upper end of the casing beneath tlelz platform and so as to be readily remova e.

2. In a drill the combination of a drill casing; a platform mounted thereon; ahorse traction sweep pivotally connected with the upper end of the casing beneath the platform and so as to be readily removable; and one or more detectors projecting from the inner end of the sweep beneath its point of connection with the casing.

3. In a drill the combination of a drill casing; a platform mounted thereon; and a horse traction sweep pivotally connected with the upper end of the casing beneath the platform and so as to be readily removable, said sweep comprising two side rails and cross tiepieces, the said rails being connected close together at their outer ends and diverging toward their inner ends to permit them to extend on opposite sides of the drill casing,

t. In a drill the combination of a drill casing; a platform mounted thereon; a horse traction sweep pivotally connected with the upper end of the casing beneath the platform and so as to be readily removable; and a wheel susoended from the sweep near its outer end and adapted to rock sidewise.

5. In a drill the combination of a drill casing; a platform mounted thereon; a horse traction sweep pivotally connected with the upper end of the casing beneath the platform and so to be readily removable; and one or more detectors projecting from the inner end of the sweep beneath its point of connection with the casing; and a wheel suspended from the sweep near its outer end and adapted to rock sidewise.

(1. In a drill the combination of a drill casing; a platform mounted thereon; and a horse traction sweep pivotally connected with the upper end of the casing beneath the platform and so as to be readily removable said sweep comprising two side rails and cross tie-pieces, the said rails being connected close together at their outer ends and diverging toward their inner ends to permit them to extend on opposite sides of the drill casing; and a wheel suspended from the sweep near its outer end and adapted to rock sidewise.

7. In a drill the combination of a drill casing; a platform mounted thereon; and a horse traction sweep pivotally connected 1 near its outer end and adapted to rock sidewise.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

A. C. LUDLUM. li'itnesses Anna CAREY DILLS; CHAS. lV. DRAKE. 

